Fluid-applying machine



Feb. 24, 1931.

F. M. FUR-BER ,793,687

FLUID APPLYING MACHINE 'Filed April 16, 1926 Fig. 2.

I 26 //V//EN 7'05 1 FREDERICK M. Fume, 050 b. 3 3 SAMUEL I? CUTLER, ADMR. Q1; his Afl'omgy .2?

Patented Feb. 24, 1931 ATE w'I' FElCE FREDERICK M. FURBEE, DECEASED, LATE OF REVERE, MASSACHUSETTS, BY SAMUEL P. CUTLER, ADMINISTRATOR, OF REVERE, IVIASSACHUSE'JITS ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEH JERSEY, A CORPORATION OF NEW JERSEY FLUID-APPLYING MACHINE Application filed April 16,

This invention relates to apparatus for applying fluids and is herein illustrated as embodied in a blaclring machine of the type disclosed in Letters Patent of the United States No. 1,311,161, granted July 29, 1919, upon the application of F. M. Furber.

Machines of the type referred to are designed to apply a stain or other fluid, hereinafter termed blaclzing to the margins of soles intended for l/ cKay sewed shoes prior to their incorporation in the shoes from a spray nozzle by means of which the blacking is projected downwardly against the margins of the inside faces of the soles in the direction of a supply receptacle which catches the unused spray during the. intervals between the presentation of soles. The soles are presented horizontally and moved around to bring successive portions of the margins into the spray. The fluid applying mechanism includes a blacking supply conduit extending vertically downward from the spray nozzle and dipping into the fluid in the receptacle.

In using machines of the type set forth'in the above-mentioned Letters Patent it is found that the fluids used are frequently of such a nature as to require agitation in order to keep uniform the liquid withdrawn from the receptacle and applied to the work. This results fro-m the composition of the fluids which frequently are made up of a mass of finely ground solid materials, suspended in a large quantity of liquid, such as water.

Accordingly an object of the present in vention is to devise an improved machine, of the type described, in which mechanism is provided for agitating the contents of the receptacle.

In order to make such an arrangement fully effective, it is essential that provision be made for relative movement between an agitator arm and the receptacle, about an axis substantially coincident with the center of the receptacle. This Very necessity, however, involves serious constructional difficulties because of the peculiar relation of the part-s of the machine, it being noted that the blacking supply conduit of the applying mechanism is axially located above the receptacle. Attention is also called to the difficulty of applying 1926. Serial No. 102,490.

an agitator through an opening in the base of the receptacle because of the difficulty of preventing leakage with such an arrangement. In accordance with a feature of the invention, the problem is solved in the present arrange ment by mounting an agitator arm in fixed position upon the blacking supply conduit, and arranging the receptacle for rotation about a vertical axis. By means of this arrangement, relative movement of rotation between the agitator arm and the receptacle is provided without the necessity of disturbing the fluid applying mechanism or any of the associated parts, located above the receptacle, and all difficulties of leakage, such as are above mentioned, are avoided.

This and other features of the invention will best be understood from a consideration of the following specification, taken in connection with the accompanying drawings, in which Fig. 1 is a side elevation of the machine, with the receptacle shown in section and with parts broken away; and

Fig. 2 is a front elevation of the machine with the receptacle partly in section.

The illustrated machine comprises a frame 10 in which is incorporated the casing 12 of an exhaust fan. The fan, contained within the casing, is mounted upon a shaft 14 which may be actuated from drive pulley 16. A reservoir 18 is also embodied in the frame of the machine to contain a supply of compressed air. A receptacle 20 for blacking, or whatever other stain or fluid may be substituted therefor, is pivotally mounted for rotation about a central vertical axis by means of a. depending stud 22 passing through a block 2% which is adjustably mounted upon two horizontal rods 26, extending forwardly from the frame 10, said block being retained in adjusted position by means of a thumb nut 28. A collar 30 is provided upon the lower end ofthe stud 22 to prevent accidental removal of the receptacle and its stud from the block 24, and lubrication is provided for by means ofan oil pipe 32 extending forwardly from the block 24 to an-accessible position outside the receptacle. A removable cover 3% provided fer the receptacle. and.

the rotation of the receptacle is effected means of a driving belt 36 engagin grooved annular projection 38 surroundi the receptacle, said driving belt passi idler pulleys L to a driving pulle ulley 42 is mounted upon a stub shaft i-l, secured in the casin of the suction fan 12 and is arranged to be driven by l6 interposed between said stub shaft and the main shaftl l. A protective casing i?) is provided for the gears 16 and the driving belt 36.

The application of fluid to the work is effected by means of mechanism mounted upon a pivotally supported arm 50, which is retained by a thumb nut 52 and a plunger 54:, said plunger being arranged to enter either one of two recesses to hold the pivotel arm either in operative position or in upwardly tilted position, as in the machine disclosed in the above-mentioned Letters Patent No. 1,311,161. The fluid applying mechanism comprises a spray nozzle 50 to which air is supplied from the reservoir 18 through the pivotally mounted arm 50. This spray nozzle is arranged to deliver a downwardly directed spray which may be appli d to the edge of a piece of work, such as the shoe sole shown at 62. The fluid is supplied to the ocspray nozzle through avertical supply conduit 64: disposed substantially centrally above the receptacle, and extending downwardly from the spray nozzle to dip into the fluid in the receptacle, a strainer 66 being provided '2 upon the lower end of the supply conduit 6%.

Gages 68 and 70 are provided which are ar ranged for adjustment vertically and horizontally, respectively, as described in Letters Patent of the United States No. 1,376,52d, granted May 3, 1921, on the application of F. M. Furber.

In order to prevent the excess spray, thrown off as itstrilres the work and deflected in small drops, from being thrown into too surrounding air and there inhaled by the operator, or from floating about the room, and causing damage, a suction hood and spray retaining device T2 has been provioed which is arranged substantially as is de scribed in said last-mentioned Letters Patent No. 1,376,524. Said hood 72 is formed upon the end of a hollow conduit 74: which is pivotally mounted upon the fan casing 12 and is arranged to be retained either in a position adjacent to the cover of the r ceptacle or in lift position, by means of set screw 76 2).

An agitator arm 80 is provided with a collar 82, by means of which the arm is secured to the depending supply conduit 64, and with a blade 84 which is tilted with respect to the axis of said conduit. The blade 84 has also a horizontal portion 86. Then, therefore, the receptacle is rotated upon its stud 22 about a vertical axis, substantially coincident with the axis of the supply conduit 6 1-, the conformation of the blade of the agitator arm 80 is such as effectively to stir up the contents of the receptacle and prevent the solid matter in the liquid from settling to the bottom.

Work such as shoe soles will l 3 applied to the machine in a position illustrated in Fig. 1, and held against the gages (38 and 70 as it is moved horizontally past the spray nozzle 60 to apply a coating to the margins of the soles. It will be noted that the arrangement of the pivoted arm 50, by means of which the fluid applying mechanism is supported, allows said mechanism, including the supply conduit 64 and agitator arm 80, to be lifted into an upraised position so that the blacking will drain out of the passages of the fluid applying mechanism, and so that the receptacle 20 may be removed for cleaning. The tilting arrangement of the spray hood 7 2 and its conduit 74 also prevents interference between this part of the machine and the receptacle, when it is desired to remove the latter for cleaning.

Having described the invention, what is claimed as new and desired to be secured by Letters Patent of the United States is:

1. In a fluid applying machine, an open receptacle for fluid, means for applying the fluid comprising aspray nozzle pointed toward the receptacle and spaced therefrom to permit work pieces presented thereto to intercept portions of the spray, whereby unintercepted portions of the fluid are returned to the receptacle, a supply conduit extending downward from the nozzle into the fluid in the receptacle, an agitating member carried by said fluid applying means, and means for rotating said receptacle with respect to said member to stir the contents of the receptacle without disturbing the effective relation of said spray nozzle to said receptacle.

2. In a fluid applying machine, a fluid receptacle, a cover for said receptacle provided with a. centrally disposed opening, said cover being arranged to drain into said receptacle through said opening, displaceable fluid applying mechanism comprising a spray nozzle directed toward the opening in said cover,

and a supply conduit for said nozzle entering said receptacle through said opening, said supply conduit having a laterally projecting relatively fixed agitating member,and means for rotating said receptacle and cover constructed and arranged to cause the agitating member to stir the contents thereof while avoiding interference with the supply conduit.

3. In a fluid applying machine, a frame, a fluid receptacle, said receptacle being pivotally supported for rotation upon bearings disposed beneath the receptacle, a fluid applying mechanism mounted upon a pivoted arm whereby said mechanism may be tilted out of the receptacle to drain the passages thereof and to allow the removal of the receptacle without interference with the fluid applying mechanism, said mechanism comprising a blacliing supply concuit entering the receptacle, said conduit having a laterally projecting member, and means for causi l'o n of the receptacle so that the contents are sti red by the projecting member on the sup ply conduit.

l. In a fluid applying machine, a frame, a fluid receptacle mounted on the frame for ro tation around a vertical axis, a fluid applying mechanism comprising a spray nozzle centrally disposed above said receptacle, said mechanism being mounted upon a pivoted arm attached to th frame to facilitate drainage of the passages of the mechanism and removal of the receptacle, said mechanism also comprising av blacking supply conduit entering the receptacle, an agitator arm within the receptacle, a spray retaining hood pivotally mounted upon the frame of the machine so that it may be rotated away from the receptacle to facilitate removal of the latter without interference with said hood, and means for causing rotation of the receptacle so that the contents are stirred by the action of the agi tator arm.

5. In a fluid applying machine, an open-top fluid receptacle, rotatably supported upon bearings beneath the receptacle, and arranged to maintain its open top in a single horizontal plane, fluid applying mechanism comprising a supply conduit dipping into said receptacle, an agitator arm fixed upon said supply con duit and comprising a blade tilted with respect to the axis of the supply conduit, and means for rotating the receptacle in said bearings around the agitator arm to stir the contents of the latter.

6. In a fluid applying machine, a fluid receptacle, fluid applying mechanism comprising a hinged support having a horizontal passage and a connecting depending supply conduit dipping into said receptacle, said mechanism being arranged for tilting about a horizontal axis to drain the passage, an agitator arm secured to said supply conduit and com prising a blade having a horizontal portion and a portion depending therefrom tilted with respect to the axis or" the supply conduit, and means for causing relative rotation of the agitator arm and the receptacle about an upright axis to stir the contents of the latter.

7. Ina machine for applying liquid blacling to the parts of boots and shoes, a receptaole for blacking supported for rotation about an upright axis, an agitator blade held in fixed position with respect to said receptacle so as to stir up the blacking carried in said rotating receptacle, and means for withdrawing blaeking from the receptacle and applying the blacking to a shoe part. 

